1. A worshipper of demons.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• semonist,
• xemonist,
• cemonist,
• remonist,
• eemonist,
• dwmonist,
• dsmonist,
• ddmonist,
• drmonist,
• d4monist,
• demomnist,
• demmonist,
• demonnist,
• demonistt,
• Demonest,
• Deomonist,
• Deomonnist,
• Demmonnist,
• Demoneest,
• Demonesst

The adjective form of the word "Demonist" is "demonic".

The plural of the "Demonist" can be the "demonists".

The singular of the "Demonist" can be the "Demonist".